多麼痛的領悟----(碼農的低級錯誤)

(2017-7-23)

問題描述: 

　　頁面url請求發出後,顯示404; 控制檯debug:

[DEBUG] Last-Modified value for [/page/index] is: -1

　　[org.springframework.web.servlet.DispatcherServlet]-

[DEBUG] Null ModelAndView returned to DispatcherServlet with name 'springmvc': assuming HandlerAdapter completed request handling

　　[org.springframework.web.servlet.DispatcherServlet]-

[DEBUG] Successfully completed request

　　[org.springframework.beans.factory.support.DefaultListableBeanFactory]-

[DEBUG] Returning cached instance of singleton bean 'sqlSessionFactory'

 

結果: 

<!-- 配置掃描器，使得@Controller註解生效 -->

<context:component-scan base-package="com.jt.manage.controller" />

可是: 項目中的base-package="controller"!!!

　　base-package名稱不一致,致使沒法掃描到controller, 纔出現以上問題.